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benzaldehyde/кариес
Линкът е запазен в клипборда
Страница 1 от 26 резултата
Control of physicochemical properties and catalytic activity of tris(2,2'-bipyridine)iron(II) encapsulated within the zeolite Y cavity by alkaline earth metal cations.
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A series of materials containing the tris(2,2'-bipyridine)iron(ii) (Fe(bpy)3(2+)) complex inside zeolite Y cavities with alkaline earth metals (Mg(2+), Ca(2+), Sr(2+), Ba(2+)) as charge compensating cations have been synthesized via a "ship in the bottle" method. The influence of the alkaline earth
Exhaled breath and oral cavity VOCs as potential biomarkers in oral cancer patients.
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Corporal mechanisms attributed to cancer, such as oxidative stress or the action of cytochrome P450 enzymes, seem to be responsible for the generation of a variety of volatile organic compounds (VOCs) that could be used as non-invasive diagnosis biomarkers. The present work presents an attempt to
The inclusion compounds of beta-cyclodextrin with 4-substituted benzoic acid and benzaldehyde drugs studied by proton nuclear magnetic resonance spectroscopy.
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Inclusion compounds of some 4-substituted benzoic acid and benzaldehyde drugs with beta-cyclodextrin were prepared and characterized by IR spectroscopy, powder X-ray diffraction, thermogravimetry, and 1H-NMR spectroscopy. The thermal stability and chemical stability of these drugs were strikingly
Synthesis of helical π-conjugated polymers bearing pyridine N-oxide pendants and asymmetric allylation of aldehydes in the helical cavity.
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Catalytically active chiral π-conjugated polymers (poly-1(NO)r) bearing pyridine N-oxide pendants were synthesized by ternary copolymerization of a d-glucose-bound diethynyl compound with two types of thieno[3,4-b]thiophene comonomer, one of which contained a pyridine N-oxide group. When the
Evaluation of the chemo- and shape-selective association of a bowl-type dodecavanadate cage with an electron-rich group.
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The host-guest interaction between a half spherical-type dodecavanadate (V12) and a neutral molecule guest was evaluated by monitoring the flip of a VO5 unit caused by the presence or absence of a guest in the cavity of V12. In N,N-dimethylformamide (DMF), V12 adopted the guest-free form
Olfactory biosensor for insect semiochemicals analysis by impedance sensing of odorant-binding proteins on interdigitated electrodes.
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Insects can sensitively and selectively detect thousands of semiochemicals at very low concentrations by their remarkable olfactory systems. As one of the most important olfactory proteins, odorant-binding proteins (OBPs) from insects are the most promising candidates for fabricating biosensors to
Dissecting the role of TRPV1 in detecting multiple trigeminal irritants in three behavioral assays for sensory irritation.
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Polymodal neurons of the trigeminal nerve innervate the nasal cavity, nasopharynx, oral cavity and cornea. Trigeminal nociceptive fibers express a diverse collection of receptors and are stimulated by a wide variety of chemicals. However, the mechanism of stimulation is known only for relatively few
Synthesis and guest recognition ability of 2,3-dimethoxy-1,4-phenylene-containing porphyrinoids.
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The acid-catalyzed condensation of the bispyrrolylbenzene derivative and benzaldehyde yielded macrocycles 1 and 2 bearing three and four dipyrrin units which are connected by 2,3-dimethoxy-1,4-phenylene rings. The cationic guest recognition ability of 1 was investigated by UV-vis absorption, (1)H
Argentivorous molecules: structural evidence for Ag(+)-π interactions in solution.
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Tetra-armed cyclens bearing aromatic side arms were prepared by the reductive amination of cyclen with substituted benzaldehydes. When equimolar amounts of Ag(+) ions were added to the ligands, the aromatic rings covered the Ag(+) ions incorporated in the ligand cavities, as if the aromatic ring
Spectral and molecular modeling studies on hydroxybenzaldehydes with native and modified cyclodextrins.
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The inclusion complexation of 2-hydroxy-3-methoxybenzaldehyde (2HMB), 4-hydroxy-3-methoxybenzaldehyde (4HMB), 3,4-dimethoxybenzaldehyde (DMB) and 4-hydroxy-3,5-dimethoxybenzaldehyde (HDMB) with α-CD, β-CD, HP-α-CD and HP-β-CD were carried out by UV-Visible, steady-state and time-resolved
De Novo Prediction of Binders and Nonbinders for T4 Lysozyme by gREST Simulations.
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Molecular recognition underpins all specific protein-ligand interactions and is essential for biomolecular functions. The prediction of canonical binding poses and distinguishing binders from nonbinders are much sought after goals. Here, we apply the generalized replica exchange with solute
A diffuse reflectance comparative study of benzil inclusion within microcrystalline cellulose and beta-cyclodextrin.
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Diffuse reflectance and laser-induced techniques were used to study photochemical and photophysical processes of benzil adsorbed on two solid powdered supports, microcrystalline cellulose and [small beta]-cyclodextrin. In both substrates, a distribution of ground-state benzil conformers exists,
Determination of the oxidation products of the reaction between alpha-pinene and hydroxyl radicals by high-performance liquid chromatography.
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In this paper a method is described for determining and quantifying the degradation products of the reaction of alpha-pinene with hydroxyl radicals. The study is carried out in a fast-flow reactor equipped with a specially designed microwave cavity (type Surfatron) allowing to operate at pressures
Near-ultraviolet absorption cross sections of nitrophenols and their potential influence on tropospheric oxidation capacity.
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Nitrophenols and methylnitrophenols have been identified as photolytic precursors of nitrous acid, HONO, but their gas-phase absorption has not previously been reported. In this study, the absorption cross sections of 2-nitrophenol, 3-methyl-2-nitrophenol, and 4-methyl-2-nitrophenol were measured
Synthesis of a Porphyrin(2.1.2.1) Nanobelt and Its Ability To Bind Fullerene.
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This Letter details a simple and effective method to synthesize a porphyrin(2.1.2.1)-based nanobelt NBNi3 via condensation reactions of 1,2,4,5-tetra(pyrrol-2-yl)benzene and benzaldehydes. NBNi3 consists of three arch-shaped porphyrins(2.1.2.1) and benzene linkages with a
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